095: LAN - DHCP Server: DNS and WINS Server Setting: IP address filled: form field does not respond to delete or backspace keys

What steps will reproduce the problem?
1. Use Firefox 38.0.5 on Mac OS X
2. Go to /Advanced_DHCP_Content.asp 
3. All DNS servers are filled
4. I want to delete a DNS server IP address (from 3 server addresses to only 
the rt-n56u as DNS resolver)

What is the expected output?
I press "Delete" and "Backspace" keys and expect characters to be deleted in 
the form field where the cursor is located.

What do you see instead?
Nothing.

What version of the product are you using? 
3.4.3.9-095 nano

Workaround:
- disable javascript
- delete the desired DNS server IP address entries
- re-enable javascript

Original issue reported on code.google.com by c...@vakantieland.nl on 18 Jun 2015 at 10:03

lixuewei / rt-n56u

095: LAN - DHCP Server: DNS and WINS Server Setting: IP address filled: form field does not respond to delete or backspace keys #1497